GVO 702-21-57400 702-21-55600 702-21-56800 702-21-55901 Large Pump Proportional Solenoid Valve for Excavator PC200-7

GVO 702-21-57400 702-21-55600 702-21-56800 702-21-55901 Large Pump Proportional Solenoid Valve for Excavator PC200-7

 Key attributes

  These valves are high-performance proportional solenoid valves (also known as EPC valves or pilot valves) designed for the main hydraulic pump control system of Komatsu excavators. They convert electrical signals from the machine's controller into proportional hydraulic pressure, directing it to the hydraulic pump regulator to provide smooth electronic control of pump displacement and flow rate.

If you need other relief valves, send us the related details please:

1.The pictures

2.The p/n

3.The size

GVO Company Overview  

  Guangzhou GVO Precision Hydraulic is a professional manufacturer and exporter specializing in the research, development, and production of hydraulic components and electrical systems for excavators. Based in Guangzhou, China, we operate in full compliance with international quality standards, ensuring that our products meet the rigorous demands of the global construction machinery industry.

  We produce and supply hydraulic pumps, gear pumps, pressure relief valves, throttle motors, and a complete series of electrical components. Our product range covers most mainstream excavator brands and models, with complete specifications and substantial inventory for prompt delivery.

  All components are precision-machined using advanced manufacturing technologies and inspected under strict quality control protocols. Our products are characterized by high precision, excellent pressure resistance, superior sealing performance, and stable operation — effectively resolving common mechanical failures such as power deficiency, hydraulic leakage, system jitter, and electrical malfunctions.

  As a direct factory supplier, we eliminate intermediaries and provide high-quality replacement parts with reliable compatibility, consistent durability, and competitive pricing.With mature production systems, comprehensive export capabilities, and a commitment to international standards, we support bulk orders, customized processing, and efficient global delivery. Through stable product quality and professional after-sales support, we have established long-term, trusted partnerships with customers worldwide.

Operational Capabilities

  We maintain a comprehensive supply chain covering engine, hydraulic, electrical, sealing, bearing, and gear components for all major excavator brands. Our 40,000 m³ warehousing facility ensures extensive stock availability, enabling same-day dispatch and rapid order fulfilment.

Our team

GVO — International Standards. Global Reliability.